overwintering

Best Greenhouse Cleaning Tips for Gardeners in the Winter

The greenhouse is one of the absolute best places to be at the moment. I know it’s winter, but the weather is amazingly mild and the inside of a greenhouse is just-jumper territory! There isn’t much you can be sowing, save for some overwintering onions and broad beans, but being out there, taking in that damp greenhouse smell, is a joy to behold.  Just because there isn’t much you can sow, doesn’t mean you can’t be busy in the greenhouse. Now is the perfect time to get into your greenhouse cleaning.

How to Get started with your Greenhouse Cleaning?

Clear out everything from the greenhouse

Removing everything from the greenhouse means you can search all over for any slimies that have taken shelter inside, or anything that could cause disease. Greenhouses are notorious for harbouring pests, especially given all the pots and associated paraphernalia that normally live there. Snails and slugs love hiding under these sorts of things, so don’t leave any nook and cranny unturned!

Remove dead leaves and foliage

Disease in a plant can easily spread around the greenhouse, so makes sure all dead leaves are removed and ideally burnt.

Protect plants whilst you’re working on cleaning your greenhouse

Although the weather is showing signs of getting milder, make sure that you protect any plants that you put outside whilst you’re clearing up. Even a few hours in the cold can affect a plant that has spent the whole winter inside.

You really don’t want to lose those tender overwinterers that you’ve worked so hard to grow. Put them in a cold frame or cover them in horticultural fleece (bubble wrap is a cheap alternative), and get the plants back inside as soon as you can.

Get rid of the weeds as part of your greenhouse cleaning

With temperatures higher in a greenhouse, weeds will start growing earlier than outside so don’t let them take a grip. Keep weeds down with regular hoeing, and use weed suppressant fabric or cardboard on bare soil. This will rob the weeds of sunlight and stop them from growing.

Don’t forget the weeds outside of the greenhouse. Keep the perimeter clear to prevent weeds from coming in under your base.

Wash the glass down of the greenhouse

Give the greenhouse panes a good wash down with hot, soapy water. Poor light can prevent plant growth, and makes your greenhouse look a bit naff. Lovely, clear panes brighten the place up no end.

Check for broken panes

Panes of greenhouse glass are often thin, and can easily become brittle from the cold or smash in windy weather. Not only is this dangerous, but it can also leave holes for pest and vermin to get inside, as well as cold drafts. If you do find a broken pane, local glass companies can cut replacements cheaply for you if you provide measurements.

Have you Cleaned Your Greenhouse?

Gardening in the cold winter isn’t the most satisfying activity, but sure the greenhouse would give some warmth while you’re following all these tips! Let me know how your cleaning process went! Did you discover anything new?

3 thoughts on “Best Greenhouse Cleaning Tips for Gardeners in the Winter”

  1. Good tips, thanks. I’ve put bark down on my greenhouse floor this year – it makes the concrete look a lot better. There’s probably a disadvantage to doing it but I’ve yet to find that out!

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